Home / 1,971,164.91-2,720,203.79-1,111,722.51

Finding the Fourth Proportional to 1,971,164.91, 2,720,203.79 and 1,111,722.51

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Solution

The fourth proportional to 1,971,164.91, 2,720,203.79 and 1,111,722.51 is: 1,534,174.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,164.91 : 2,720,203.79 = 1,111,722.51 : x
  2. Step 2: Convert to fraction form
    1,971,164.91/2,720,203.79 = 1,111,722.51/x
  3. Step 3: Cross multiply
    1,971,164.91x = 2,720,203.79 × 1,111,722.51
  4. Step 4: Simplify right side
    1,971,164.91x = 3,024,111,779,571.70
  5. Step 5: Solve for x
    x = 3,024,111,779,571.70/1,971,164.91
  6. Step 6: Final answer
    x = 1,534,174.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.